606060005981 has 2 divisors, whose sum is σ = 606060005982. Its totient is φ = 606060005980.

The previous prime is 606060005939. The next prime is 606060006001. The reversal of 606060005981 is 189500060606.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600406469881 + 5653536100 = 774859^2 + 75190^2 .

It is a cyclic number.

It is not a de Polignac number, because 606060005981 - 2⁶ = 606060005917 is a prime.

It is a super-3 number, since 3×606060005981³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (606060002981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303030002990 + 303030002991.

It is an arithmetic number, because the mean of its divisors is an integer number (303030002991).

Almost surely, 2^606060005981 is an apocalyptic number.

It is an amenable number.

606060005981 is a deficient number, since it is larger than the sum of its proper divisors (1).

606060005981 is an equidigital number, since it uses as much as digits as its factorization.

606060005981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 606060005981 in words is "six hundred six billion, sixty million, five thousand, nine hundred eighty-one".